Affordability is usually based on a combination of:
Lenders typically offer a mortgage based on a multiple of income, adjusted to reflect your monthly outgoings.
Using a calculator helps you:
For landlords and investors, it also helps assess whether further purchases fit comfortably within your wider portfolio strategy.
This provides guidance, not a mortgage guarantee. Final lending decisions depend on:
That’s why combining calculator results with professional advice is always recommended.
Use our online Affordability Calculator for a quick, easy estimate of what you could afford – it only takes a few minutes.
It’s a great first step before viewings, offers, or mortgage applications.

If you’d like a more accurate figure for what you can afford, get in touch with us today.
Our team of trusted mortgage brokers will:
We’re here to help you make sense of your options, plan with confidence, and move forward knowing exactly where you stand.